Automobile bumper



'April 5, 1927.

O. H. GOETZ AUTOMOBILE BUMPER Filed June 24. 1925 2 Sheets-Sheet 1 INVENTOR OSCAR H. Gofz ATTORNEY Patentedl Apr. 1927.

OSCAR H. GOETZ, OFSPBINGFIELD, MASSACHUSETTS, ASSIGNOR T AMERICAN CHAIN COMPANY, INC., A ConroRarIoN oFNEW Yoitx.

AUTOMOIQILE BUMPER.

Application led Junev24, 1925. Serial N0z 39,194.

This inventionelates to bumpers for automobiles, and has for an ob]ect the 'provision of a multi-bar bumper comprising as a main element a 5 structed entirely in one having a front impact portion` and a rearattaching portion, the bumper comprising also a plurality ofauxiliary bars supported by,

wardly positioned loop .end bumper bar conhorizontal plane and and inI parallelism with, the said front portion ofthe main bar, serving to widenl the impact surface of the bumper.

A further object is' 'to provide ainulti-bar bumper, iary bars,

therewith, as to afford a thus constituted of main and auxilin whichtliel auxiliary bar s have loo 'ends so conformed in contour with the en loops of the main bar, and so connected high degree of resistance to damage by hooking, and at the same time present a pleasing appearance. Among other objectsv of the provision of which the means --the invention is for interconnection ofthe component bars with .each other are so organized as to permit`the roduction of a multi-bar bumper of exceptional strength at an expense very little in excess of the cost of the basic main element, but with all the advantages certain other bumpers of more elaborate and Ycostly construction of the multi-bar type.

Referring to the drawingsz' Fig. 1 is a view in front elevation of'a l bumper embodying the invention, and Fig.

2 is a plan view thereof.

Fig. y2 is a sectional view yon the .line

2"-2, and s a similar view on the line 2"- front elevation of v,a modificach Fig. 4 is a plan view. 4

Fig. 2b

Fig. 3'isa tion, of wln Fig'. 5 is a fcation, of which Fig. 6 is a plan' view and Fig. 5*il Fig. 5l

isolated,

scale.

front elevation of another modiis a section on the line 5*- f., l l

shows one of the holding collarsdetail, on a somewhat larger v Fig. 7 is a front elevation of still another modicat-ion, view and Fig. 7B is a section on' the line- Y main bar by clamps 6 and 9, which may be of which Fig. 8 is a plan a multi-bar bumper 'in-- l Fig. is front elevation of another modification, of which Fig. 10 is a plan view and Fig. 10 is a view in vertical section on the line 1010.

In the illustrated embodiment, the reference character 1 designates the front or iinpact portion of a bumper-bar which constitutes the main element of the bumper,

having loop ends 2 and a rear port-ion or portions 3 'which may be attached to an automobile by, any suitable means, not shown. In the form illustrated in Figs. 1 and 2 the main bar is formed by4 bending extensions of the front portion around to form the loop ends 2, then rearward to form 'the attaching portions 3, and then forward into proximity with the. front portion, to which vtheir free ends 4 and 5 are secured in overlapping` relation by a suitable clamp 6. Auxiliary impact members are shown at 7 and 8, one above, yand the other below, the

main bar 1,extending in parallelism therel with, and supported therefrom in-spaced relation by suitable clamps 9, the central clamp 6 being provided with extensions lO'to embrace the auxiliary bars and aid in their support. The preferred structure of the clamp 6 is shown in Fig. 2 in which 6 designates the face plate; of the clamp, and 11 a back plate, one of these plates preferably having spacing projections 12 to enter .between the mainvhar andauxiliary bars.

-The preferredy st-ructure of each of the auxiliary clamps is shown in detail in Fig.

2", in which'9 designates the face plate and 13 the rear plate, one of these ,plates preferably havingspacing lmeans 14 to enter between tlie vmain and auxiliary bars.

The auxiliary bars 7 and 8 are respectively shownas co-ex'tensive iny length with the main bar, terminating in shepherds crook ends at 15 "to avoid hooking and to conformi in general curvature with the loop ends 2 of the main bumper bar, thus yielding a pleasing eiect at the bumper ends.

n the modification shown in Figs. 3 and 4, the main bar is designated by the reference character 21, and auxiliary impact bars are bolted together in overlapping relation l at 20, forminga substantially straight rear bar at the middle portion, and having near each end a re-entrant curved port1on 24 to which are secured end loops formed 1n extensions 25. of the auxiliary bars respectively,

which conform in contour with the end loops 22 of the main bar.

The extremities 26 of the auxiliary bar loops are `bent forward into proximity with the impact portions 27 and 28 of the auxiliary bars, being adapted to enter the clamps 9, by which they are secured in place.

Additional clamps 29 are shown connecting the auxiliary bars with the main bar and with each other at the rear extensions of the end loops, these additional clamps being provided with spacer blocks 30 and being preferably riveted to the respective bars, as at 17.

The modied structure thus constituted is exceptionally strong and rigid, pleasing in appearancev and adapted to resist hooking damage, and is inexpensive to make and easy to assemble.

In the ymodification shown in Figs.` 5 .to

6 the mainbar is designated by the refer-y ence character 31, and auxiliary impact vbars 37 and 38 are supported aboveand below the main bar by clamps 9 which maybe substantially identical in construction with the similarly numbered clamps already described.

.In this modification the rear or attaching portiony 33 of the main bar is similarly formed by bending extensions of the main bar in the same horizontal plane to form loop ends 32 and the ends of t-he extensions are 1 bolted together in overlapping relation at 20f'forming a substantially straight rear bar y at the middle portion, and having near each enda re-entrant curved portion 34 to which are secured end loops formed in 'extensions 35' of the auxiliary bars respectively, which conform in contour with the end loops 32 of the main bar. u The extremities 36 of the auxiliary bar loops 35 are formed wlth eyes `through which pass bolts 19, and these bolts `are provided with collarsl 39 having projections 40 which engage with the portions 34 of the main bar and hold the respectivel loops in assembled relation.

In the modification shown in FigsfV to V8, the main'bar is designated by the reference character 41, Vand'auxiliary impact bars 47 )and 48 are'snpported above andbelow the j main bar by clamp-ing device 9, which may be substantially identical in construction v with the similarly numbered clamps already dcscribed. In this modification the loopyends 42 of the main bar are similarly formed by bending extensions of the main bar in the same horizontal plane, and the rear or attaching portion`43 of the main bar is formed v by a separate member, lying in the same plane and secured to the ends of the loops 42 in overlapping relation by bolts 50, which also secure thereto a supporting clamp or device 49bolted at 5() to the loop ends 46 of the auxiliary bars l The rear bar member 43 is bent forward in reverse'curves 43x Yon each side, and is secured to the front bar member 41 by amid connection 16.

In the modification shown in Figs. 9 to 10,

the main bar is designated by the referenceI character 51, and auxiliary impact bars 57 and 58 are supported above and below the main bar by clamps 9 which may be substantially identical in construction with the similarly numbered clamps already de@ scribed. In this modification the rear or attaching portion 53 of the main bar is similarly formed by bending extensions of the main bar in the same horizontal plane .to

`form loop ends 52 and the ends of the exparts 54 ofv the end loops of the .main bar.

These devices comprise members 59 and 60 secured together by bolts 18 and having spacing projections at 62 which enter between the main bar and the auxiliary bars. The ends of the auxiliary bar loops may advantageously be secured' to the clamping members 60, as indicated at 61, by stud-andhole connections which serve to prevent escape of the loop ends from the clamps.

"Having described my invention, I claim: 1. An automobile bumper comprising as a main element a bumper bar constructed in a single horizontal plane, having afront impact portion with loop ends and a rear attaching portion formed in continuation of said loop ends; said bumper comprising also an auxiliary impact bar supported in parallelism with the impact portion of said main bar by cross ties extending from said main bar.

2. An automobile bumper comprising as aI main bar by cross-ties extending from said main bar.

An automobile bumper comprising as a liiain element a bumper bar constructed iu a single horizontal plane, lia-ving a front inipact portion with loop ends and a rear attaching portion; said bumper comprising also auxiliary impact bars supported in the same vertical plane with the impact portion of said main bar, and parallel therewith throughout its length, by cross-tics extend'-vv ing from said main bar.

4. An automobile bumper comprising as a main element a bumper bar. constructed in a single horizontal plane, having a front impact portion with loop ends and rear at.- taching portions formed in continuation ot' said loop ends; said bumper comprising also auxiliary impact bars supported by said main bar in parallelism with the impact portion thereof, and in the saine vertical plane, the trout impact portions of the respective bars being substantially co-exteiisive in length. y

5. An automobile bumper comprising as a niainelement a bumper bar constructed in a single horizontal plane, having a front impact portion with loop ends and a rear attaching portion joining said loop ends; said bumper comprising also auxiliary impact bars supported in parallelism with the impact portion of said main bar by cross-ties connected with, and extending from, said main bar.

6. An automobile bumper (comprising as a main element a bumper bar constructed in a single horizontal pIaneLhaving a Yfront impact portion with loop ends and a rear attaching portion joining said loop ends; said bumper comprising also auxiliary impact bars supported in parallelism with the impact portion of saidmain bar by crossties connected with, and 'extending from, said main bar, the impact portionot the respective bars being substantially co-extensive iii length and lying in the saine vertical 7. An automobile bumper comprising as a main element a bumper bar constructed in a single horizontal plane, having a front impact portion with loop ends and a rear attaching ortion; said bumper comprising ffalso auxi iary impact bars supported in parallelism with the impact portion of said .main bar by a central cross-tie and spaced ing Portion; Sadvbumper comprising alsoy auxiliaryimpact bars supported in paral lelism with the impact ortion of said main bar by cross-ties exten ing from said main bar, each such auxiliary bar having curved ends conforming with the loop ends of said main bai'.

1)..An automobile bumper comprising as a main element a loop end bumper bar constructed in a single horizontal plane, with a front impact portion and a rear attaching portion; said bumper comprising also aux- 'iliar'gf'inipact bars supported in parallelism wit i the impact portion ot' said main bar by clampsextending above and below said main bar. said auxiliary bars having curved ends conforming with the loop ends of said inaiu bar. c

l0. An automobile bumper comprising as a main element a loop oud bumper bar constructed in asingle horizontal plane, with a front impact portion and a rear attaching portion; said bumper comprising also auxiliary inipact'bars supported in parallelism with the impact portion of said main bar by a series of devices extending aboveand below said main bar', said auxiliary bars havingend loops connected with each other and with the. end loops of said main bar by certain of said devices.

11. An automobile bumper comprising as a. main element a loop end bumper bar constructed in ay single horizontal plane, with a. trout impact portion and a rear attaching portion; said bumper comprising also auxiliary impact bars supported in parallelism with the impact portion of said main bar by a series of clamps extending above and belowsaid main bar, said auxiliary bars having end loops connected with each other and with the end loops ot said main bar by certain of said clamps.

12. An automobile bumper comprising as a main element a loop end bumper bar constructed in a single horizontal plane with a front impact portion and a rear attaching portion; said bumper comprising also auxiliary impact bars supported in parallelism with the impact portion of said main baiby a series of 'devices extendin above and below said main bar, said auxiliary bars having end loops connected with each otherand with the end loops of said main bar by certain of said devices. and the free ends of said auxiliary end loops being connected with their impact portions by certain others ol' said devices.

13. An automobile bum er comprising as a main element a loop end) bumper bar constructed in a `single horizontal plane with a front impact portion and a rear attaching portion, said rearporti'on having a mid connection with said impact portion. said bumper comprising also' auxiliary impactl bars supported in parallelismwith the impact portion of said mam bar bylspaced devices extending above and below said main bar;l t .l

14; An automobile bumper comprising as llt) a. main element a loop end bumper bar conpact portion of said main bar by spaced destructed in a single horizontal plane with vices extending above and below said main :n front impact portion and a rear attaching bar and being secured to said rear portion of l0 portion, said rear portion having a. mid said main bar by said mid connection.

5 connection with said impact portion, said In testimony whereof, I have signed this bumper comprising also auxilia impact specification. t bars supported in parallelism wit the im- OSCAR H. GOETZ. 

